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authorIlya Dryomov <idryomov@gmail.com>2019-04-08 14:16:05 +0200
committerIlya Dryomov <idryomov@gmail.com>2019-07-08 14:01:45 +0200
commitef83171b49c66d851a1a0dc6da5b4a4d8ee6ce9a (patch)
tree59e7506c2cd595036a3bbeb22feb473d6a087b40 /include/linux/ceph
parent637cd060537d0c40bcf4f164b8a2c6e9b747e1ad (diff)
libceph: bump CEPH_MSG_MAX_DATA_LEN (again)
This time for rbd object map. Object maps are limited in size to 256000000 objects, two bits per object. Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Reviewed-by: Dongsheng Yang <dongsheng.yang@easystack.cn>
Diffstat (limited to 'include/linux/ceph')
-rw-r--r--include/linux/ceph/libceph.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/include/linux/ceph/libceph.h b/include/linux/ceph/libceph.h
index a3cddf5f0e60..82156da3c650 100644
--- a/include/linux/ceph/libceph.h
+++ b/include/linux/ceph/libceph.h
@@ -84,11 +84,13 @@ struct ceph_options {
#define CEPH_MSG_MAX_MIDDLE_LEN (16*1024*1024)
/*
- * Handle the largest possible rbd object in one message.
+ * The largest possible rbd data object is 32M.
+ * The largest possible rbd object map object is 64M.
+ *
* There is no limit on the size of cephfs objects, but it has to obey
* rsize and wsize mount options anyway.
*/
-#define CEPH_MSG_MAX_DATA_LEN (32*1024*1024)
+#define CEPH_MSG_MAX_DATA_LEN (64*1024*1024)
#define CEPH_AUTH_NAME_DEFAULT "guest"